Summary
Latest filing:
Stephen R. Stone is PRESIDENT AND CEO of CoastalSouth Bancshares, Inc. (COSO). 4 SEC Form 4 filings on record going back to 2025, most recently on 29 April 2026. Most recent open-market trade: bought $5K of COSO on 9 March 2026. Lifetime open-market purchases: $52K.
Recent Transactions
4Every recent SEC Form 4 transaction Stephen R. Stone has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Stephen R. Stone files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Ernst W. Bruderer - $165K of COSO open-market activity in the last 12 months
- Anthony P. Valduga - $118K of COSO open-market activity in the last 12 months
- Michael B. High - $38K of COSO open-market activity in the last 12 months
- James S. Macleod - $9K of COSO open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Stephen R. Stone?
Stephen R. Stone is a corporate insider, tracked as PRESIDENT AND CEO of CoastalSouth Bancshares, Inc. (COSO). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Stephen R. Stone last file a Form 4?
The most recent primary Form 4 on record is dated 29 April 2026, one of 4 filings going back to 2025.
Has Stephen R. Stone been buying or selling stock?
Recorded transactions: 2 open-market purchases ($52K) and 0 open-market sales across all tracked filings.
Where can I see all of Stephen R. Stone's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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